I went out in search of lightning photos the other night, and even though the skies looked pretty threatening, no lightning ever materialized. As I headed home I passed this piece of farm equipment sitting at a local business and decided to light paint it with a flash. I named the photo ”run for the hills” because between the sky ,and the front end of this contraption, I thought it looked pretty menacing. Its called a forage harvester,and I think it does corn but it may have other uses for all I know.
Donald Reese Photography 
Wow, your photos continue to impress me. Would love to know how to do this technique.
It is actually quite simple. set up your tripod, usually around dark,so your flash can light whatever areas you want. first i get an ambient light exposure for the sky portion,then i simply light each section of the subject as needed. this shot was around 20 seconds for the available light,and then i hit it with an off camera flash at various angles. i use manual flash and adjust accordingly. the flash images are brought in on top of the base layer,and then i put that layer on lighten mode,and when you brush across the photo,the only thing that shows up is the flash you did.
Thanks, will give it a try although I don’t expect results as spectacular as yours.
Forgot,I use a laptop many times,so i dont bump the camera.not absolutely needed but it helps